TSMC's Capex Tell and CXMT's Overhang Drag Micron Into the $840s

A Valuation De-Rate, Not a Fundamental One

Micron's grind to $840.60 has less to do with Micron than with the entire memory complex unwinding at once. Since June 25, semiconductor names have shed roughly $1.5 trillion in market value, with Micron alone accounting for nearly $350 billion of that. MU, Samsung, SK Hynix, and the Roundhill Memory ETF have all fallen more than 20% from their highs — a synchronized bear market in the year's hottest trade, arriving hard after Korean memory names first cracked in early July.

What makes it telling is the reaction function. Samsung posted record numbers — roughly $59 billion in operating profit — and still sold off. When a stock drops on good news, the market is repricing the multiple, not the earnings. Micron sits about 26% below its $1,154 June peak yet is still up 169% year-to-date. This is air coming out of a parabolic run, not a business breaking.

TSMC's Capex Tell and the [CXMT](/movers/cxmt) Overhang

The specific spark for this leg lower came from a company that beat. TSMC delivered record earnings but simultaneously lifted its 2026 capital spending guidance to $60-64 billion, above its prior $56 billion ceiling. Rising capex across the foundries and memory makers reads as more future supply, and in a tape already fixated on peak pricing, that is a sell signal regardless of how good the print was.

Layered on top is ChangXin Memory Technologies (CXMT), the Chinese DRAM maker now ranked fourth globally, which is preparing an ~$8.55 billion IPO to fund aggressive capacity expansion — with reports that Apple is testing CXMT chips for devices sold in China. That is a direct shot at the DRAM pricing power the entire Micron bull case rests on, and it is exactly the kind of structural overhang that analysts have flagged as the real question inside the selloff: not this quarter's demand, but how durable pricing stays once rival capacity ramps.

What the Tape Is Pricing

This is a grind, not a gap. Micron broke the $850 shelf overnight and is now working the $840 handle on roughly $258 million of 24-hour turnover in the HIP-3 perp. The fundamentals still give bulls a floor to point at — Micron's guidance framed a ~$50 billion revenue quarter and the company has strung together eight straight beats — but the tape has stopped paying for it.

The bearish read gets invalidated by a stabilization back above $850 that actually holds; it gets confirmed by continued lower-highs as CXMT's IPO and rising capex keep the supply narrative front of mind. Until the memory complex stops treating good news as a reason to sell, dips in MU are being distributed, not accumulated.